Date: Fri, 15 Jan 2021 12:17:10 +0100 From: Juraj Lutter <otis@FreeBSD.org> To: freebsd-current@freebsd.org Subject: Re: Waiting for bufdaemon Message-ID: <2649F5A1-AB7A-4054-A115-5C7D88DCE720@FreeBSD.org> In-Reply-To: <20210115.201030.1395690536446474720.yasu@utahime.org> References: <7c4da243-52ff-c5ee-3d56-1ae651286e0e@alvermark.net> <20210115.201030.1395690536446474720.yasu@utahime.org>
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> On 15 Jan 2021, at 12:10, Yasuhiro Kimura <yasu@utahime.org> wrote: >=20 > From: Jakob Alvermark <jakob@alvermark.net> > Subject: Waiting for bufdaemon > Date: Fri, 15 Jan 2021 11:26:47 +0100 >=20 >> When rebooting my thinkpad the 'bufdaemon' times out: >>=20 >> Waiting (max 60 seconds) for system thread 'bufdaemon' to stop >> ... timed out >>=20 >> Waiting (max 60 seconds) for system thread 'bufspacedaemon-0' to stop >> ... timed out >>=20 >> Waiting (max 60 seconds) for system thread 'bufspacedaemon-1' to stop >> ... timed out >>=20 >> Waiting (max 60 seconds) for system thread 'bufspacedaemon-2' to stop >> ... timed out >>=20 >> Waiting (max 60 seconds) for system thread 'bufspacedaemon-3' to stop >> ... timed out >>=20 >> Waiting (max 60 seconds) for system thread 'bufspacedaemon-4' to stop >> ... timed out >>=20 >> Waiting (max 60 seconds) for system thread 'bufspacedaemon-5' to stop >> ... timed out >>=20 >>=20 >> This started happening recently (within the last week I think). >>=20 >>=20 >> Any ideas? >=20 > I have been experiencing same problem with my 13-CURRENT amd64 > VirtualBox VM for about a month. The conditions that the problem > happens are unclear and all what I can say is >=20 > * It happens only after I login in the VM and do something for a > while. If I boot the VM and shut it down immediately, it never > happens. > * When the problem happens, one or more unkillable processes seem to > be left. I have been fighting with situations like this for month or two, opened = more PRs about it. My observation was that after putting some load on the machine, = mysterious mrsas(4) timeouts started to happen, processes were unkillable, reboots could not = complete in time... For sake of bisect, main-c255656-gb500c184b656 is known to work OK for = me as of now.
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